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CVE-2026-85171— n8n before 1.123.73 Credential Exposure via Error Logging

Quick assessment

Affected
n8n-io n8n
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在版本 1.123.73、2.35.4 和 2.36.2 之前的 n8n 中，Strapi、SeaTable 和 Mailcheck 节点存在凭据泄露漏洞。这些节点通过传统的原始 HTTP 辅助工具，在没有任何错误处理保护的情况下，将其解密后的凭据发送到认证端点，导致明文密钥会被持久化存储在执行的错误数据中。任何经过身份验证的用户都可以通过 REST API 从自己的执行记录中读取明文密钥，从而绕过凭据 API 强制实施的空白值脱敏机制。

CVSS 7.1 · High

Affected Version Matrix 6

VendorProduct Version RangeStatus
n8n-io n8n < 1.123.73 affected
1.123.73 unaffected
< 2.36.2 affected
2.36.2 unaffected
< 2.35.4 affected
2.35.4 unaffected
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I. Basic Information for CVE-2026-85171

Vulnerability Information
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Vulnerability Title
n8n before 1.123.73 Credential Exposure via Error Logging
Source: CVE Program / CVE List V5
Vulnerability Description
n8n before 1.123.73, 2.35.4, and 2.36.2 contains a credential exposure vulnerability in the Strapi, SeaTable, and Mailcheck nodes. These nodes send their decrypted credentials to the authentication endpoint via the raw legacy HTTP helper outside any error handling, causing the plaintext secret to be persisted in execution error data. Any authenticated user can read the plaintext secret from their own execution through the REST API, bypassing the blank-value redaction enforced by the credentials API.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过日志文件的信息暴露
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
n8n-io n8n 0 ~ 1.123.73 -
n8n-io n8n 0 ~ 2.36.2 -
n8n-io n8n 0 ~ 2.35.4 -

II. Public POCs for CVE-2026-85171

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III. Intelligence Information for CVE-2026-85171

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Vendor Advisories for CVE-2026-85171 (2)

Same Patch Batch · n8n-io · 2026-09-03 · 9 CVEs total

CVE-2026-85169 8.7 HIGH n8n before 1.123.73 Remote Code Execution via $fromAI Prototype Leak
CVE-2026-85168 7.7 HIGH n8n before 1.123.73 Remote Code Execution via Git Node
CVE-2026-85165 7.2 HIGH n8n before 2.36.2 Expression Sandbox Bypass via SpreadElement
CVE-2026-85166 7.2 HIGH n8n before 2.36.2 Credential Exfiltration via Workflow Tool Node
CVE-2026-85170 7.1 HIGH n8n before 1.123.73 Local File Read and SSRF via Gmail and Brevo nodes
CVE-2026-85167 6.3 MEDIUM n8n before 2.36.2 Query Injection via Elasticsearch Firestore Nodes
CVE-2026-85172 5.3 MEDIUM n8n before 2.34.1 SSRF via Request Helper URI Validation Bypass
CVE-2026-85173 5.3 MEDIUM n8n before 2.36.2 Missing Authorization via Insights API

IV. Related Vulnerabilities

Same product: n8n
Same vendor: n8n-io
Same weakness: CWE-532

V. Comments for CVE-2026-85171

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